Phased focusing device
A focusing device and phase control technology, applied in medical science, heating surgical instruments, ultrasonic therapy, etc.
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[0013] As shown in Fig. 1, the phase control focusing device of the present invention includes: a transmitter 3, and the transmitter 3 includes: at least 10 vibration elements, and the number of vibration elements depends on the superimposed value of the focused acoustic power to meet the practical application. As shown in Figure 2, each vibration element includes: base 2, piezoelectric ceramic sheet 1, frequency source 6, power device 10, power supply 8, phase shifter 7 and frequency divider 9, piezoelectric ceramic sheet 1 and frequency The source 6 is fixed on the base 2, the base 2 is fixed on the transmitter 3, the power supply 8 is connected to the input terminals of the phase shifter 7 and the frequency divider 9 respectively, and the output terminals of the phase shifter 7 and the frequency divider 9 are respectively It is connected to the input end of the power device 10, and the output end of the power device 10 is connected to the frequency source 6. The piezoelectri...
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